/* ========================================
   Mathur Advisory - Clean Professional Design
   Navy + Gold Brand Colors
   ======================================== */

:root {
  /* Brand Colors */
  --navy: #1a365d;
  --navy-dark: #122543;
  --navy-light: #2d4a6f;
  --gold: #c9a227;
  --gold-light: #d4b342;
  --gold-dark: #a8871e;

  /* Neutrals */
  --text-primary: #1a202c;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --white: #ffffff;
  --off-white: #fafafa;
  --light-gray: #f5f5f5;
  --border-color: #e5e5e5;

  /* Typography */
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-heading: Georgia, 'Times New Roman', serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 2.5rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 5rem;

  /* Layout */
  --max-width: 1100px;
  --nav-height: 150px;

  /* Transitions */
  --transition: all 0.2s ease;
}

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-secondary);
  background: var(--white);
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--navy);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--gold);
}

ul, ol {
  list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 400;
  color: var(--navy);
  line-height: 1.3;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.25rem; font-family: var(--font-body); font-weight: 600; color: var(--text-primary); }
h4 { font-size: 1.125rem; font-family: var(--font-body); font-weight: 600; color: var(--text-primary); }

p {
  margin-bottom: var(--space-sm);
}

/* Layout */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-3xl) 0;
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-lg);
}

.section-header h2 {
  margin-bottom: var(--space-sm);
}

.section-header p {
  color: var(--text-muted);
  margin-bottom: 0;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 500;
  font-family: var(--font-body);
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--navy);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--navy-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(26, 54, 93, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--navy);
  border: 1px solid var(--navy);
}

.btn-secondary:hover {
  background: var(--navy);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(26, 54, 93, 0.2);
}

.btn-accent {
  background: var(--gold);
  color: var(--white);
}

.btn-accent:hover {
  background: var(--gold-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(201, 162, 39, 0.4);
}

.btn-outline-light {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.5);
}

.btn-outline-light:hover {
  background: var(--white);
  color: var(--navy);
  transform: translateY(-2px);
}

.btn-white {
  background: var(--white);
  color: var(--navy);
}

.btn-white:hover {
  background: var(--off-white);
  color: var(--navy);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn-lg {
  padding: 0.875rem 2rem;
  font-size: 1rem;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--white);
  z-index: 1000;
  transition: var(--transition);
}

.nav.scrolled {
  box-shadow: 0 1px 0 var(--border-color);
}

.nav-dark {
  background: transparent;
}

.nav-dark.scrolled {
  background: var(--navy-dark);
}

.nav-dark .nav-link {
  color: rgba(255,255,255,0.85);
}

.nav-dark .nav-link:hover,
.nav-dark .nav-link.active {
  color: var(--white);
}

.nav-dark .nav-link::after {
  background: var(--gold);
}

.nav-dark .nav-toggle span {
  background: var(--white);
}

.nav-dark .nav-logo img {
  filter: brightness(0) invert(1);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3xl);
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.nav-logo {
  display: flex;
  align-items: center;
}

.nav-logo img {
  height: 140px;
  width: auto;
}

.nav-logo-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--navy);
  font-weight: 400;
}

.nav-dark .nav-logo-text {
  color: var(--white);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-link {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  position: relative;
  padding-bottom: 4px;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--navy);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.active {
  color: var(--navy);
  font-weight: 500;
}

.nav-link.active::after {
  width: 100%;
}

.nav-cta {
  margin-left: var(--space-sm);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--navy);
  transition: var(--transition);
}

/* Hero - Homepage */
.hero-home {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--navy);
  position: relative;
}

.hero-bg {
  display: none;
}

.hero-home .container {
  position: relative;
}

.hero-home .hero-content {
  max-width: 700px;
  text-align: center;
  margin: 0 auto;
  padding: var(--space-2xl) 0;
}

.hero-badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: rgba(201, 162, 39, 0.15);
  border: 1px solid var(--gold);
  color: var(--gold);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  margin-bottom: var(--space-lg);
}

.hero-home h1 {
  color: var(--white);
  font-size: 2.75rem;
  margin-bottom: var(--space-md);
  line-height: 1.2;
}

.hero-home .lead {
  color: rgba(255,255,255,0.75);
  font-size: 1.125rem;
  margin-bottom: var(--space-xl);
  line-height: 1.7;
}

.hero-home .hero-cta {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255,255,255,0.15);
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--gold);
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Page Header */
.page-header {
  padding-top: calc(var(--nav-height) + var(--space-2xl));
  padding-bottom: var(--space-2xl);
  background: var(--navy);
  text-align: center;
}

.page-header h1 {
  color: var(--white);
  margin-bottom: var(--space-xs);
}

.page-header p {
  color: rgba(255,255,255,0.7);
  max-width: 500px;
  margin: 0 auto;
}

/* Cards */
.card {
  background: var(--white);
  border: 1px solid var(--border-color);
  padding: var(--space-lg);
  transition: var(--transition);
}

.card:hover,
.card-hover:hover {
  border-color: var(--navy);
}

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--light-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  color: var(--navy);
}

.card-icon svg {
  width: 24px;
  height: 24px;
}

.card h3, .card h4 {
  margin-bottom: var(--space-xs);
}

.card p {
  color: var(--text-muted);
  font-size: 0.9375rem;
  margin-bottom: 0;
}

.card-link {
  display: inline-block;
  margin-top: var(--space-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gold);
}

.card-link:hover {
  color: var(--gold-dark);
}

.card-tag {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  background: var(--gold);
  color: var(--white);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: var(--space-sm);
}

/* Dark Cards */
.card-dark {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
}

.card-dark:hover {
  border-color: var(--gold);
}

.card-dark h3 {
  color: var(--white);
}

.card-dark p {
  color: rgba(255,255,255,0.65);
}

.card-number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  color: var(--gold);
  opacity: 0.4;
  line-height: 1;
  margin-bottom: var(--space-sm);
}

/* Grids */
.grid {
  display: grid;
  gap: var(--space-md);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Dark Section */
.section-dark {
  background: var(--navy);
}

.section-dark .section-header h2 {
  color: var(--white);
}

.section-dark .section-header p {
  color: rgba(255,255,255,0.65);
}

/* Features */
.features-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-width: 700px;
  margin: 0 auto;
}

.feature {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  padding: var(--space-lg);
  background: var(--light-gray);
  transition: var(--transition);
}

.feature:hover {
  background: var(--white);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  flex-shrink: 0;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
}

.feature-content h4 {
  margin-bottom: var(--space-xs);
}

.feature-content p {
  color: var(--text-muted);
  margin-bottom: 0;
  font-size: 0.9375rem;
}

/* Process Steps */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  text-align: center;
}

.process-step .step-number {
  width: 48px;
  height: 48px;
  background: var(--navy);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1.125rem;
  margin: 0 auto var(--space-md);
}

.process-step h4 {
  margin-bottom: var(--space-xs);
}

.process-step p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* CTA Section */
.cta-section {
  background: var(--navy);
  text-align: center;
}

.cta-section h2 {
  color: var(--white);
  margin-bottom: var(--space-sm);
}

.cta-section p {
  color: rgba(255,255,255,0.7);
  margin-bottom: var(--space-lg);
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* Footer */
.footer {
  background: var(--navy-dark);
  color: rgba(255,255,255,0.6);
  padding: var(--space-xl) 0 var(--space-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.footer-logo {
  display: block;
  margin-bottom: var(--space-sm);
}

.footer-logo img {
  height: 56px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer-brand p {
  font-size: 0.875rem;
  margin-bottom: 0;
}

.footer h4 {
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer-links a {
  color: rgba(255,255,255,0.6);
  font-size: 0.875rem;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
}

.footer-legal {
  display: flex;
  gap: var(--space-md);
}

.footer-legal a {
  color: rgba(255,255,255,0.5);
}

.footer-legal a:hover {
  color: var(--white);
}

/* About Page */
.about-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

.about-text h2 {
  margin-bottom: var(--space-md);
}

.about-text h3 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--text-primary);
}

.about-sidebar {
  background: var(--light-gray);
  padding: var(--space-lg);
}

.about-sidebar h4 {
  margin-bottom: var(--space-md);
  font-family: var(--font-body);
  font-weight: 600;
}

.about-sidebar ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.about-sidebar li {
  padding-left: var(--space-md);
  position: relative;
  font-size: 0.9375rem;
}

.about-sidebar li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--gold);
}

/* Team Section */
.team-grid {
  max-width: 700px;
  margin: 0 auto;
}

.team-member {
  display: flex;
  gap: var(--space-xl);
  align-items: flex-start;
  background: var(--white);
  border: 1px solid var(--border-color);
  padding: var(--space-xl);
  transition: var(--transition);
}

.team-member:hover {
  border-color: var(--navy);
}

.team-photo {
  flex-shrink: 0;
  width: 180px;
  height: 220px;
  overflow: hidden;
  background: var(--light-gray);
}

.team-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.team-info h3 {
  font-family: var(--font-heading);
  color: var(--navy);
  font-size: 1.375rem;
  margin-bottom: 0.25rem;
}

.team-title {
  color: var(--gold);
  font-weight: 500;
  font-size: 0.9375rem;
  margin-bottom: var(--space-md) !important;
}

.team-bio {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: var(--space-md) !important;
}

.team-social {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.team-social:hover {
  color: var(--navy);
}

/* Services Page */
.service-card {
  padding: var(--space-xl);
}

.service-card h3 {
  margin-bottom: var(--space-xs);
}

.service-meta {
  font-size: 0.8125rem;
  color: var(--gold);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border-color);
}

.service-list {
  margin-top: var(--space-md);
}

.service-list li {
  padding: var(--space-xs) 0;
  padding-left: var(--space-md);
  position: relative;
  font-size: 0.9375rem;
}

.service-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-weight: 600;
}

/* Solutions Page */
.solution-card {
  border-left: 3px solid var(--gold);
}

.solution-label {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.3rem 0.625rem;
  background: var(--light-gray);
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.solution-section {
  margin-top: var(--space-md);
}

.solution-section h4 {
  font-size: 0.6875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
  font-weight: 600;
}

.solution-section p {
  margin-bottom: 0;
  font-size: 0.9375rem;
}

/* Portfolio Page */
.portfolio-status {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.3rem 0.625rem;
  margin-bottom: var(--space-sm);
}

.status-pilot { background: #fef3c7; color: #92400e; }
.status-development { background: #dbeafe; color: #1e40af; }
.status-internal { background: #d1fae5; color: #065f46; }
.status-complete { background: #e0e7ff; color: #3730a3; }

.portfolio-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

.portfolio-tag {
  font-size: 0.6875rem;
  padding: 0.2rem 0.5rem;
  background: var(--light-gray);
  color: var(--text-muted);
}

/* Contact Page */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
}

.contact-info {
  padding: var(--space-xl);
  background: var(--light-gray);
}

.contact-info h3 {
  margin-bottom: var(--space-md);
}

.contact-info > p {
  margin-bottom: var(--space-xl);
}

.contact-method {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  padding: var(--space-sm);
  transition: var(--transition);
}

.contact-method:hover {
  background: var(--white);
}

.contact-method-icon {
  width: 40px;
  height: 40px;
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  flex-shrink: 0;
}

.contact-method h4 {
  font-size: 0.875rem;
  margin-bottom: 0.125rem;
}

.contact-method p {
  margin-bottom: 0;
  font-size: 0.9375rem;
}

.contact-form {
  background: var(--white);
  padding: var(--space-xl);
  border: 1px solid var(--border-color);
}

.contact-form h3 {
  margin-bottom: var(--space-lg);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-weight: 500;
  font-size: 0.875rem;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem;
  font-size: 0.9375rem;
  font-family: var(--font-body);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--navy);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-note {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: var(--space-md);
}

/* Utilities */
.text-center { text-align: center; }
.bg-light { background: var(--light-gray); }
.bg-white { background: var(--white); }

/* Animations */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.625rem; }

  .section { padding: var(--space-2xl) 0; }
  .container { padding: 0 var(--space-md); }

  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-md);
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }

  .nav-dark .nav-menu {
    background: var(--navy-dark);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-toggle { display: flex; }
  .nav-cta { margin-left: 0; }

  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; gap: var(--space-lg); }

  .feature {
    flex-direction: column;
  }

  .hero-home h1 { font-size: 2rem; }

  .hero-home .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .hero-home .hero-cta .btn {
    width: 100%;
    max-width: 260px;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-md);
  }

  .about-content { grid-template-columns: 1fr; }
  .about-sidebar { order: -1; }

  .team-member {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  .team-photo {
    width: 140px;
    height: 175px;
  }

  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-lg); }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container { padding: 0 var(--space-sm); }
  h1 { font-size: 1.75rem; }
  .btn { padding: 0.625rem 1.25rem; font-size: 0.875rem; }
  .card { padding: var(--space-md); }
}